Knox in shock over verdict

New York - Amanda Knox says a decision by Italian courts to reinstate a guilty verdict against her “hit me like a train.”

Speaking to Robin Roberts on ABC's “Good Morning America,” Knox said Friday that the decision was “not right” and “not fair.”

Amanda Knox appears on NBC News' "Today" show in New York, in this image released by NBC on September 20, 2013. Picture: Peter Kramer/NBC/Handout. Credit: REUTERS

An Italian court on Thursday reinstated a guilty verdict first handed down against her and an ex-boyfriend in 2009 in the slaying of a British roommate. The verdict was overturned in 2011, but Italy's supreme court vacated that decision and sent the case back for a third trial in Florence.

The 26-year-old University of Washington student says she will never willingly go back to Italy and vowed to “fight this until the very end.”